Finding the Fourth Proportional to 11,536.86, 15,917.51 and 7,764.29

Step by Step Solution

1. Step 1: Write the proportion equation
   11,536.86 : 15,917.51 = 7,764.29 : x
2. Step 2: Convert to fraction form
   11,536.86/15,917.51 = 7,764.29/x
3. Step 3: Cross multiply
   11,536.86x = 15,917.51 × 7,764.29
4. Step 4: Simplify right side
   11,536.86x = 123,588,045.31
5. Step 5: Solve for x
   x = 123,588,045.31/11,536.86
6. Step 6: Final answer
   x = 10,712.45